Straight-bar knitting machine



June 19, 1928.

E. A. NOBLE STRAIGHT BAR KNITTING MACHINE Filed March 126, 1927 Patented June 19, 1928.

UNITED STATES PATENT EMILE ARSNE NOBLE, OF TROYES, FRANCE, ASSIGNOR TO SO OFFICE.

MENTS DELOSTAL FRERES, OF TROYES, FRANCE.

STRAIGHT-BAR KNITTING MACHINE.

Application led March 26, 1927. Serial No. 178,750.

rier bars in order to obtain the diiierent' strokes corresponding to the knitting of the heels and spliced heels within their inner selvedge and the knitting in the interval between the heels; This adjustment required a careful attention in order to bring the thread carriers to the exact pitch position with respect to the sinkers forming the loops. l

My invention permits to perform such changes. as are required by a variation in the size of the articles to be produced, in a rapid and easy manner andwithout requiring any adjustment of the' yarn fingers as to the pitch or needle division. This advantage is due to the fact that all of the stopping and locking members for theI heel, spliced heel and interval of the heel, are mounted on a I common adjustable supporting block or heel apparatus and may thus be simultaneously displaced; said block being secured in the adjusted posit-ion on the machine frame by means of racks or like members which are cut to the machine.

Moreover, the controlling members used to bring the stopping and locking members to their operative position are mounted `on the said supporting block and simultaneously displaced therewith. Said members com- Aprise rotary cam discs mounted on a common shaft and adapted to act upon the said stopping and locking members, whereby they operation of control is rendered very easy. In the accompanying drawing, given by Away of example:

Fig. ,'1 is a side elevation view of my improved device, the yarn finger being shown in its position for knitting the heel, on the inner selvedge of one of the heel portions.

Fig. 2 is a cross section along the line 2 2, Fig. 1.

pitch or needle division of thev Fig. 3 is a partial plan View.

Fig. 4 is an elevation view of the controlling device for the selvedge stops which is mounted on the narrowing carriage.

The carrier bar 101 is member 102 and locking member 103 as described in my prior patent above referred to. Fig. 1 shows the carrier bar in the position it occupies when the thread carrier or yarn finger 104 is located on the line C-D, i. e. above the inner selvedge of the left hand heel. All the bars which are to stop. on the same line, i. e. the left s liced heel carrier' bar .and the carrier bar or knitting in the interval between the heels, when it stops on the left are stopped and locked in the same According to y invention, the stop members 102 and loc 'ng members 103 for all the carrier bars which will stop on the line C--D,'are mounted upon a supporting block 105which may be shifted upon the main support 111 of the machine and secured thereon by means of the bolt 105.

In as much as the yarn fingers should always be stopped at the required pitch division with respect to the sinkers forming the emma Das annusarlocked by the stop f loops, the position of the supporting block along the main sup ort 111 of the machine is adjusted in the ollowing manner.

A rack 106 eut .to the gauge pitch of the 'machine is secured to said carriage 105 and engages intoa similar rack 107 carried by a flexible blade 108. This blade is secured -to the main support 111 of the machine by means of the screws and spacer 109.

The rack members are held in mutual engagement by the clamp screw 112 screwed in a strap 113 secured to the support 111. i In order to adjust the machine for an article of a certain size the rack 107 will be dlsengaged from the rack 106 and the supporting block 105 will be shifted to the desired extent, whereupon the racks will come agaln into engagement and be locked together and the block 105 will be locked on the machine frame by means of the bolt 105. In this manner, the yarn linger 104 which was .1n a required pitch division will be again 1n a new pitch division without requirmg any special adjustment.

The members controlling the pperatlve position of the stopping and locking members are mounted on the supporting block 105. In order to economize space end to render their operation easier, they are constructed as follows:

On the-block 1Q5 is mounted a shaft 114 carrying cams 115 which engage with rocking levers 116. Said levers actuate the stop members 102 and locking members 103 through the medium of forks 117, connecting rods 118 and heads 119. A similar device is provided for each stop to he actuated. The cams are so shaped and arranged that by a progressive rotary movement ofthe shaft 114, the stopping and locking members will he successively brought to operative position in the required sequence in the course of manufacturing the desired article.

Fig. 4 shows a similar arrangement of controlling device for the stops of the narrowin carriage. The cams 120, one for each stop to be controlled, are secured on a shaft 121 rotating in the narrowing carriage. The rocking levers 122 actuated by the cams 120 act upon the stops 123 which are held tin their upper or operative position by springs 124.

The cam shafts 114 and 121 may be either driven automatically or brought by the hand to the required angular position. Said shafts can also be operatively connected to a common controlling member.

It will be understood that the invention is not restricted to the construction shown and in particular the racks above referred to may be replaced by other members acting in the same way.

Having now described my` invention, what I claim as new and desire to secure by Let ters Patent is:

1. In a straight knitting machine, the combination of yarn fingers, carrier bars supporting said yarn fingers and adapted to be moved longitudinally, stopping and locking means adapted to stop the yarn fingers on the inner selvedge of a heel, a supporting block secured on the machine frame in an adjustable position and supporting the stopping and locking means, means on the machine frame for locking said block in various positions in accordance with the needle division of the machine, and controlling means mounted on said block for controllin the operative position of said stopping an locking means.

2. In a straight knitting machine, the

,mounted upon the combination of yarn fingers, carrier bars supporting said yarn fingers and adapted to be moved longitudinally, stopping and lockinglmeans adapted to stop the yarn fingers on the inner selvedge of a heel, a supporting block secured on the machine frame in an adjustable position and supporting the stopping and locking means, means on the ma- ,chne frame for locking said block in various positions in accordance with the needle division of the machine and a rotary member on said block for controlling the operative position of all the stopping and locking means in its rotation.

3. In a straight knitting machine, the combination of yarn fingers, carrier bars supporting said yarn fingers and adapted to be moved longitudinally, stopping and locking means adapted to stop the yarn fingers on the inner selvedge of a heel, a supporting frame in an adjustable position and supporting the stopping and locking means, means on the machine frame for locking said block in various positions in accordance with the needle division of the machine, rotary cams supporting block for controlling the operative position of the stopping and locking members and a common shaft for said cams.

4. Ina straight knitting machine, the combination of yarn fingers, carrier bars supporting said yarn fingers and adapted to be moved longitudinally, stopping means for said carrier bars, a narrowing carriage supporting said stopping means, and a rotary member mounted on said narrowing carriage for controlling the operative position of all the said stopping means in its rotation.

5. In a straight knitting machine, the combination of yarn fingers, carrier bars supporting said yarn fingers and adapted to be moved longitudinally, stopping means for said carrier bars, a narrowing carriage supporting said stopping means, rotary cams mounted on said narrowing carriage for controlling the operative position of the said stopping members and a common shaft for said cams.

In testimony whereof I have signed my name to this specification.

EMILE ARSNE NOBLE.

block secured on the machinel 

